Removal of silt from a lake?????

[TF_Mikey .J.]

Has anyone ever had this done on there local lake? What are the best methods to remove it and what are the costs etc? We have a good foot or more of silt on my local and need some advice on the best way to remove it. It is a 43 peg lake.

Anyone know anything?

[TF_carpmagicParticipant]

Normally it’s a case of removing the fish, draining the lake down and then pumping the silt out. The problem is where to pump the silt too!

[TF_MarkT]

A club i was in wanted to do they same thing but they didn’t in the end, i think it worked out to be far to expensive. The other thing is the water would have to be drained and the fish would have to be put somewhere till it was done.
Best thing to do is contact the ea and see what they say.

[diddly-squattParticipant]

A mate of mine reckons there is a chemical in pellet form that you can throw in and the silt is broken down some how. The ea may know.
P.S. don’t try the pellet on the hook

[TF_SLAB]

A small pool i am a member of had a silt issue.The carp were also stunted in growth.The EA done some checks and advised adding lime(i think)to the water.If it was lime it worked very well.Since it was added a couple of years ago all the fish have thrived.Some of the carp doubling in size and the scimmers and bigger bream reappered.The deepth also increased by a foot or so exposing fallen branches ect.Also now the fish feed more the bottom gets churned up so more of the silt is drained away.I would contact the EA.What ever they done at the pool the fishing improved.Before 10lb would win a match now 30lb of may get you a place.

[TF_wayne2009]

wow the EA actually knowing something and helping thats a first.

[TF_squatt]

Mikey, try this link.

http://www.anglersnet.co.uk/authors/bruno09.htm

[toto]

SILTEX IS WHAT YOU WANT(highly porus CALCIUM CARBONATE)SPEAD FROM THE BACK OF A BOAT I USED IT ON A LAKE IN SHROPSHIRE

[toto]

@SLAB wrote:

A small pool i am a member of had a silt issue.The carp were also stunted in growth.The EA done some checks and advised adding lime(i think)to the water.If it was lime it worked very well.Since it was added a couple of years ago all the fish have thrived.Some of the carp doubling in size and the scimmers and bigger bream reappered.The deepth also increased by a foot or so exposing fallen branches ect.Also now the fish feed more the bottom gets churned up so more of the silt is drained away.I would contact the EA.What ever they done at the pool the fishing improved.Before 10lb would win a match now 30lb of may get you a place.

LIME DOES HELP USED MAINLY FOR POOR PH WATER QUALIY(ACIDIC)

[TF_carpmagicParticipant]

Siltex and lime are okay if used regularly but to be honest they wont breakdown more than a couple of inches of silt in a year. If there is at least a foot of silt then i think you need to look at alternative ways of removing it.

[TF_wayne2009]

cheers for the info steve

[TF_wightangler]

lime has been used and recommended including ea as means of compacting silt.
However, they also say that care should be used when you decide to do this as deoxygenisation can occur.

[TF_SLAB]

Just confirmed with one of the lads that done the work.It was Siltex and Lime.This was added spring time for the last couple of years.This process the deepth has increased by 18 inches to 2 foot.In some pegs were their are more fish the deepth is even deeper.

[toto]

@carpmagic wrote:

Siltex and lime are okay if used regularly but to be honest they wont breakdown more than a couple of inches of silt in a year. If there is at least a foot of silt then i think you need to look at alternative ways of removing it.

STEVE SORRY TO HAVE TO DISAGREE WITH YOU HERE MATE,OVER THE COURSE OF TWO YEARS SILTEX TOOK OUT A GOOD 9INCH+

[TF_carpmagicParticipant]

toto that is extremely good results in 2 years. I know several fisheries that have used the above and managed max a couple of inches of silt a year.

[Anonymous]

so how much does it cost..say for an 1.5 acre lake ??

[TF_Nigel.]

I use Hydrated lime for my lakes.
Agriculture lime is better if fish are present, but you need to buy it in bulk, usually 20 tons, which is what i did when i first came here.
Hydrated lime can damage fish if it is poured neat onto them. It is OK if you spread it from a boat with the motor running, it disperses it.
Its a minefield, and each person or website you look at will tell you different things!
When i first came here, i put 20 ton in one go, 25 acres, so nearly a ton per acre, and last year i put in 2 ton, 80 bags of hydrated lime. I dont wish to overdo it now its stocked.
1 ton per acre will raise the PH by one, and mine is 9 now, so dont want to go any higher.
It will improve the water, and will reduce the silt, i only wish to keep mine at bay, i dont have a problem, just trying to keep it that way.
Siltex is better, but a lot more expensive.
You should really take silt samples from different areas, and take them to be analysed by your agronomist to get the correct quantities required.
Follow this with a fertiliser program though the year and you will have a nice healthy water with thriving fish!

[TF_Nigel.]

1 1/2 acres i would put in 9 bags, and at about £6 (bulk price)from the builders mercahnt is only going to cost you £54.
If it cost £10 a bag, its stil cheap.

[toto]

@carpmagic wrote:

toto that is extremely good results in 2 years. I know several fisheries that have used the above and managed max a couple of inches of silt a year.

STEVE IT COULD HAVE SOMETHING TO DO WITH THE MAKE UP OF THE SILT I GUESS LAKE BEDS VARY

[TF_Mikey .J.]

Wow thanks for the replies guys. Will definitely research this lime an Siltex!

Great information. Thanks a million!

[TF_feeder]

we had our lake done years ago by the council.the firm did not drain the lake just used special pumps.they actually used lagoons to pump it into a short distance away and let it settle.i think the council sold the silt as fertiliser after it had drained.rather expensive job though we could not afford to do it as a club.

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